While the peak demand was recorded around 1pm, residents in east Delhi and parts of south and central Delhi, spent long hours sweating without power since Wednesday night.
Sources said a 220 KV line in Khajuri Khas, east Delhi, snapped around 8pm on Wednesday, injuring around 30 people.
Hours later, a high tension line conductor stopped working.
While these affected only east and northeast Delhi, even large portions of south Delhi was powerless for which Delhi Transco refused to take responsibility.
"The disruptions in south Delhi were not on our account. Only east Delhi was affected due to multiple trippings of four lines but power was restored at the earliest. We were able to handle the high load and our infrastructure is more than capable of handing this load," said Delhi Transco director (operations) V P Dutta.
Senior officials from south Delhi's electricity supplier, BSES Rajdhani, retaliated, saying that due to system constraints caused by Delhi Transco, there was load-shedding in areas such as Mehrauli, Sheikh Sarai, Malviya Nagar, CR Park, Lajpat Nagar, Vasant Kunj, East of Kailash and Chhatarpur.
"Transco lines were unable to handle so much load, so they resorted to shedding in south Delhi. The average load in east and central Delhi areas these days is around 1,200 MW, which DTL's Khajoori Khas line could not sustain and hence, it snapped," said a BRPL official.
While the affected Khajoori Khas line was restored in a few hours, the snapping of the 220 KV Noida-Ghazipur line maintained by UPCL could be restored only by late Thursday night.
While Transco and the discoms passed the buck, thousands of residents in east went powerless through the night. The affected colonies were Patparganj, Mayur Vihar phase I and II, Vasundhara Enclave, Preet Vihar, Safdarjung, Kalkaji etc.
"The power went off in my society around 1.50 am and I woke up in the heat since we don't have back-up. The power finally came back just after 3am and in a few societies close to mine it came about an hour later. I barely managed to get a few hours sleep when it went off again at 7am and came back after 8. From then till 4pm, the power went off at least three more times," said Sonia Saxena, a resident of Patparganj.
In Mayur Vihar, residents lined up in front of the local discom official only to find it locked. Sheikh Sarai residents spent three hours on Thursday afternoon without electricity while Preet Vihar residents claimed that discom helplines were deliberately switched off.
Source- Times of India